Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
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[1]research packet 1041-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-239-yms239-pkt-1041-packet-md
-
[2]NavSource Online: Mine Warfare Vessel Photo Archive, YMS-239 page - construction timeline, specifications, Turkish transfer, striking dates [other_primary]
- Locator
- NavSource 11/19239.htm header block, class header, and specifications block
- Finding type
- vessel_history
- Finding
- Documented for this hull: YMS-1 Class Auxiliary Motor Minesweeper - laid down 6 May 1942 by Stadium Yacht Basin Inc., Cleveland, OH; launched 27 October 1942; completed 16 April 1943 and commissioned USS YMS-239; struck from the Naval Register 19 February 1948; transferred to Turkey in May 1948 and named TCG Kerempe (M 30); struck from the Turkish Navy list in 1966; fate unknown. Call sign Nan-Charlie-Victor-Able. Specifications: displacement 270 t.; length 136'; beam 24' 6"; draft 8'; speed 15 kts.; complement 32; armament one 3"/50 dual purpose gun mount, two 20mm mounts, two depth charge projectors; propulsion two 880 bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1966
- Population
- Construction trades, Stadium Yacht Basin, Cleveland (1942-43); U.S. Navy crew (1943-48); Turkish Navy crew (1948-66)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates corroborated here by uboat.net (ordered/laid/launched/commissioned/stricken) and shipbuildinghistory (delivery date). The page's own tagline misprints the hull as 'YMS-293' (see ev-09). Contains no asbestos content. Turkish-service detail (M 30 pendant, 1966 striking) is asserted by NavSource and corroborated by the Wikipedia Turkish-Navy list; no Turkish archival source consulted.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-01
-
[3]uboat.net, Allied Warships of WWII, USS YMS-239 (YMS-239) ship page - builder, order and milestone dates [other_primary]
- Locator
- uboat.net ship/9658 specification table
- Finding type
- vessel_history
- Finding
- Secondary warship compilation corroborating this hull's record: built by Stadium Yacht Basin (Cleveland, Ohio); ordered 14 March 1942; laid down 6 May 1942; launched 27 October 1942; commissioned 16 April 1943; 'Stricken on 19 February 1948.' No commanding officers listed and no wartime events recorded for the hull on the page.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1948
- Population
- Construction trades (1942-43); U.S. Navy crew (1943-48)
- Limitations
- Secondary compilation, not a primary registry; the 'ordered 14 March 1942' datum appears here but not in NavSource and is not traced to a contract document. Contains no asbestos content. The absence of listed events/commanders reflects the compilation's coverage, not the ship's activity.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-02
-
[4]Shipbuilding History (Tim Colton compilation), 'Stadium Boat Works, Cleveland OH' - yard history and output table including YMS-239 [other_primary]
- Locator
- shipbuildinghistory.njscuba.net Stadium Boat Works page, yard-history paragraph and output table (YMS-239 row)
- Finding type
- vessel_history
- Finding
- Builder-yard record for this hull: Stadium Boat Works (started as Stadium Yacht Basin around 1935, closed 1957; yard at the foot of West 3rd Street, by the Cleveland Browns Stadium) lists YMS-239 delivered 16 April 1943 at 278 tons, annotated 'to Turkey 1947 as Kerempe, struck 1966.' Sister Stadium-built YMS hulls tabulated include YMS-235 through YMS-240, YMS-389 through YMS-392, YMS-414, YMS-460, and YMS-461; the yard also built PCS-1413 through PCS-1416 patrol craft.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1935-1957 (yard); 1942-1966 (vessel)
- Population
- Stadium Yacht Basin / Stadium Boat Works construction trades (1942-43)
- Limitations
- Secondary shipbuilding compilation, not a primary registry. Two conflicts with NavSource: transfer year given as 1947 (vs May 1948) and tonnage listed as 278 (vs 270 t.) - both carried in gaps, NavSource values used for the record fields. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-03
-
[5]National Archives, Special List 44: List of Logbooks of U.S. Navy Ships, Stations, and Miscellaneous Units, 1801-1947 (by ship number), RG 24 [other_primary]
- Locator
- sl-44-ship-number.pdf, PDF page 117, entry 'YMS-239 4/16/1943 6/30/1945' (verified by direct PDF text extraction)
- Finding type
- historical_record
- Finding
- NARA holds deck logs for this hull: Special List 44's ship-number index lists 'YMS-239' with log coverage 4/16/1943 through 6/30/1945 - spanning her commissioning through mid-1945. The logs themselves are the authoritative day-by-day record of her wartime operations, ports, and availabilities; their contents were not reviewed page-by-page.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-04-16 to 1945-06-30
- Population
- U.S. Navy crew of YMS-239 (1943-45)
- Limitations
- Coverage index entry only - establishes that deck logs for this hull exist at NARA for the stated span, not their contents. Index coverage (ending 6/30/1945) does not say whether post-1945 logs exist separately; the digitized muster-roll file unit (ev-05) runs to 6/6/1946. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-04
-
[6]NARA Catalog, file unit 'YMS-239, 4/16/43-6/6/46', NAID 193018489 - RG 24 Muster Rolls of U.S. Navy Ships, Stations, and Other Naval Activities (1939-1949), 172 images, digitized [other_primary]
- Locator
- NARA Catalog NAID 193018489; images 00002-00003 (quarterly muster-roll forwarding sheets, OCR-verified)
- Finding type
- historical_record
- Finding
- Digitized crew-roster record for this hull: the NARA Catalog holds the complete YMS-239 muster-roll file unit - 172 page images in the RG 24 Bureau of Naval Personnel Muster Rolls series, titled 4/16/43-6/6/46 (commissioning through June 1946). OCR spot-check of the opening pages confirms 'MUSTER ROLL OF THE CREW / U.S.S. YMS-239' quarterly forwarding sheets signed by the Executive Officer. The rolls name every crew member by quarter - the direct population record for anyone researching who served aboard.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-04-16 to 1946-06-06
- Population
- U.S. Navy crew of YMS-239, all hands, 1943-1946
- Limitations
- Roster documentation only - names and dates of assignment, no material or exposure content; page images reviewed only at the head of the file unit (forwarding sheets), individual quarterly rolls not transcribed. File-unit title end date (6/6/46) exceeds the SL44 deck-log coverage end (6/30/45). No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-05
-
[7]NARA Catalog full-text search on "YMS-239" - 97 file units surfaced by OCR/extracted text, including Eastern Sea Frontier war diaries and the Cleveland Supervisor of Shipbuilding muster rolls [other_primary]
- Locator
- catalog.archives.gov search q="YMS-239" (97 results; named NAIDs in finding_value)
- Finding type
- historical_record
- Finding
- NARA Catalog full-text search returns this hull inside digitized records beyond her own logs: 'COMEASTSEAFRON - War Diary' file units for 8/1-31/43 (NAID 78301520), 12/1-31/43 (NAID 78362039), and 1/1/44-2/29/44 (NAID 78402550); 'COMNORGR ESF - War Diary, 2/1-29/44' (NAID 78397119); 'NOB KEY WEST - War Diary, 7/1-31/43' (NAID 78131513); 'NAV MINE DEP, YORKTOWN, VA - War Diary, 7/1-31/43' (NAID 135897255); 'NYd BOSTON - War Diary' file units for 6/43 and 10/43 (NAIDs 134267516, 135983437); 'COMTASK-GROUP 52.6 - War Diary, 12/1-31/45' (NAID 77608945); and 'Supervisor of Ship Building, Cleveland, OH, 11/30/42-10/1/45' (NAID 185267928) - the muster rolls of the Navy shipbuilding-supervision office covering the district and period of her construction. The Eastern Sea Frontier, Key West, Boston Navy Yard, and Yorktown mine-depot hits are consistent with wartime service on the U.S. East Coast/Gulf-Florida frontier.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1946
- Population
- U.S. Navy crew of YMS-239 (1943-44); Supervisor of Shipbuilding Cleveland staff (1942-45)
- Limitations
- Search-result level verification only: the file units surfaced under a full-text 'YMS-239' query, meaning the string occurs in their OCR'd pages; individual pages were not reviewed, so the context of each mention (operational assignment vs. passing reference) is unconfirmed. NARA Catalog description APIs are JS-gated and were not accessible; results read via rendered search page. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-06
-
[8]Era inference built on: NavSource specifications (two GM 8-268A diesels, reduction gear, two shafts; wooden-hulled YMS-1 class per NavSource class index); shipbuildinghistory yard record; GAO HRD-80-2 program context (ev-08) [other_primary]
- Locator
- NavSource specifications block (11/19239.htm) and class index (11/19idx.htm); shipbuildinghistory Stadium page
- Finding type
- asbestos_application
- Finding
- A wooden-hulled, diesel-powered Navy auxiliary built 1942-43 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a vessel of this type and period were diesel-exhaust lagging, machinery thermal insulation, gaskets, valve packing, electrical insulation, and brake linings on winches and the windlass. She carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply - and her small 32-man crew and wooden hull narrow the plausible application set relative to combatants.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1942-1966
- Population
- Stadium Yacht Basin construction trades (1942-43); U.S. Navy crew (1943-48); Turkish Navy crew (1948-66); disposal workers post-1966
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, builder spec, or work package located for YMS-239. Names era-standard applications, not confirmed installed materials. No quantity. Product names are normalized era terms; no manufacturer attribution for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-07
-
[9]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - spanning this hull's entire construction (1942-43) and U.S. service era (1943-48).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, confirmed 2026-10-04) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-08
-
[10]Designation/name cross-check: NavSource YMS-239 page (tagline); Wikipedia list of mine warfare vessels of the Turkish Navy (ex-YMS-239 = Kerempe); Turkish Wikipedia, TCG Kerempe (M-521) article [other_primary]
- Locator
- NavSource 11/19239.htm flag-line; en.wikipedia.org 'List of mine warfare vessels of the Turkish Navy'; tr.wikipedia.org TCG Kerempe (M-521)
- Finding type
- historical_record
- Finding
- CORRECTIONS/COLLISIONS: (a) the NavSource YMS-239 page's own flag-line misprints the hull as 'YMS-293' ('YMS-293 served the Navies of the United States and Turkey') - the page otherwise documents YMS-239 throughout; the slip is typographical, not a different ship. (b) The TCG Kerempe that was ex-YMS-239 carried pendant M 30; the later TCG Kerempe (M-521, ex-German M-1252 Detmold, transferred to Turkey December 1975) is a different ship reusing the name - the two hulls must not be conflated. (c) Turkish-service corroboration for the ex-YMS-239 Kerempe rests on the Wikipedia Turkish-Navy mine-warfare list ('Kerempe - Ex-USS YMS-239'), matching NavSource; no Turkish archival source consulted.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1948-1975
- Limitations
- Corrects circulating collision hazards, not a material claim. The M 30 pendant and 1966 Turkish striking rest on secondary sourcing throughout; no Turkish Navy register consulted. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-09
-
[11]Batch-8877 search ledger (this record): NavSource ship page and class index; uboat.net; shipbuildinghistory; NARA Special List 44; NARA Catalog (muster rolls NAID 193018489, war-diary/SupShip hits); NHHC DANFS candidate URL; NavalCoverMuseum; NVR; secondary web litigation sweep; CourtListener (blocked) [other_primary]
- Locator
- search_ledger rows sl-uss-yms-239-01 through -14 (incl. -07b, -07c)
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS YMS-239 was found in the public sources searched (see search_ledger). No DANFS entry exists for the hull (NHHC candidate URL returns 'Error - Page Not Found', corroborating NavSource's 'no DANFS history available' note). CAVEAT: CourtListener partially searched - the 'USS YMS-239' opinion query returned a single name-collision hit (a Texas criminal appeal, no vessel or asbestos nexus) and the 'USS YMS-239' docket query returned 793 token-level collisions (none vessel- or asbestos-related on the returned page; asbestos-qualified variant authorized but pacing-blocked); the 'YMS-239' hull-number queries were blocked by fleet-wide pacing budget exhaustion; logged as blocked in search_ledger, not as a negative result.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - and the litigation repository search is a genuine open gap (pacing-blocked, not run). Deck logs (SL44 coverage), Turkish transfer/disposal records, and the digitized muster rolls are the open leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-239-10